O12, O33, D91, D83, C93, Q16
J64, O15, O33, D83, J68, C93, D91, J24, O12
D83, L82, O33
O12 (Microeconomic Analyses of Economic Development); O13 (Agriculture; Natural Resources); D12
J15, J16, C92
I21; O15; O33; C93
D91, C93, O12
I1, J16
J15, J61, C93, O15, J16, I31
J13, J16, J71